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WT 40K-H-US L2 / WT 40K-HU-US L2 vs MID 40K-HU 7 of 20 identical Swap Change inverters

Growatt WT 40K-H-US L2 / WT 40K-HU-US L2 vs Growatt MID 40K-HU

Growatt WT 40K-H-US L2 / WT 40K-HU-US L2
Growatt
WT 40K-H-US L2 / WT 40K-HU-US L2
40 kW Hybrid
Open inverter page Datasheet PDF
VS
Growatt MID 40K-HU
Growatt
MID 40K-HU
40 kW 97.2 % euro Hybrid
Open inverter page Datasheet PDF
The verdict

MID 40K-HU leads on the differences that matter

The largest is max dc voltage: 200 V apart. 7 of 20 comparable parameters are identical, with 12 more left out because at least one datasheet does not publish them.

See all 13 differences
How alike are they
7 of 20 comparable
parameters are identical
identical differs not published
01

What actually differs

13 of 20 parameters
Parameter WT 40K-H-US L2 / WT 40K-HU-US L2 MID 40K-HU Difference
Max DC voltage 800 V 1000 V 200 V apart
Max input current per tracker 32.0 A 40.0 A 8.0 A more headroom
Max efficiency 98.0 % 98.6 % 0.6 pp more efficient
Max PV power 86.40 kW 80.00 kW 6.40 kW apart
Weight 140.0 kg 48.0 kg 92.0 kg lighter
Weight per kW 3.5 kg/kW 1.2 kg/kW 2.3 kg/kW lighter
DC/AC ratio 2.16 2.00 0.16 more oversizing headroom
Nominal AC voltage 208 V 400 V 192 V apart
Max AC current 122.2 A 66.7 A 55.5 A apart
Start voltage 195 V 160 V 35 V earlier start
MPPT voltage range 180-600 V 200-1000 V 180-600 V vs 200-1000 V
Battery voltage 380-650V 600-980 V 380-650V vs 600-980 V
Dimensions 1350x820x501 mm 570x680x256 mm 1350x820x501 mm vs 570x680x256 mm
02

Full specification

Parameter WT 40K-H-US L2 / WT 40K-HU-US L2 MID 40K-HU Difference
AC output
Rated AC power 40.00 kW 40.00 kW Same
Max AC power 40.00 kW 40.00 kW Same
Grid connection 3-phase 3-phase Same
Nominal AC voltage 208 V 400 V 192 V apart
Max AC current 122.2 A 66.7 A 55.5 A apart
PV input
Max PV power 86.40 kW 80.00 kW 6.40 kW apart
DC/AC ratio 2.16 2.00 +0.16 for WT 40K-H-US L2 / WT 40K-HU-US L2
Max DC voltage 800 V 1000 V 200 V apart
MPPT voltage range 180-600 V 200-1000 V 180-600 V vs 200-1000 V
Start voltage 195 V 160 V -35 V for MID 40K-HU
MPP trackers 2 - Not published by Growatt
Strings per tracker - 2 Not published by Growatt
Max input current per tracker 32.0 A 40.0 A +8.0 A for MID 40K-HU
Efficiency
European efficiency - 97.2 % Not published by Growatt
Max efficiency 98.0 % 98.6 % +0.6 pp for MID 40K-HU
CEC efficiency - - Neither datasheet publishes this
Battery
Battery input Yes Yes Same
Battery voltage 380-650V 600-980 V 380-650V vs 600-980 V
Max charge current - 42 A Not published by Growatt
Backup power - 30.0 kW Not published by Growatt
Physical
Weight 140.0 kg 48.0 kg -92.0 kg for MID 40K-HU
Weight per kW 3.5 kg/kW 1.2 kg/kW -2.3 kg/kW for MID 40K-HU
Dimensions 1350x820x501 mm 570x680x256 mm 1350x820x501 mm vs 570x680x256 mm
Ingress protection IP66 IP66 Same
Cooling forced-air forced-air Same
Noise - 55 dB Not published by Growatt
Max operating temperature 60 °C 60 °C Same
Connectivity and safety
Wi-Fi - Yes Not published by Growatt
Ethernet - - Neither datasheet publishes this
Arc fault protection - Yes Not published by Growatt
Integrated DC switch - Yes Not published by Growatt
Warranty
Warranty - 5 yrs Not published by Growatt
03

More useful comparisons

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GoodWe
Growatt WT 40K-H-US L2 / WT 40K-HU-US L2 vs GoodWe GW40K-ET-10
13 differences, the largest is max dc voltage
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Ginlong Solis
Growatt WT 40K-H-US L2 / WT 40K-HU-US L2 vs Ginlong Solis S6-EH3P40K-H
13 differences, the largest is max dc voltage
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Deye
Growatt WT 40K-H-US L2 / WT 40K-HU-US L2 vs Deye SUN-40K-SG01HP3-EU-BM4
15 differences, the largest is max dc voltage
04

Written summary

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.